Police Chief Dave Bentrud said Wednesday night an incident Sunday led police to arrest Staska Tuesday, and police were investigating previous incidents as well. He would not elaborate on the arrest, citing the ongoing investigation.

"We have no reason to believe minors were in anyway involved," Bentrud said. "And we have no concern that there is any threat to public safety."

Bentrud said he said he expects to release more information Thursday.

Staska has been superintendent at Rocori, which includes the towns of Cold Spring, Rockville and Richmond, since 2002, when he arrived from Yellow Medicine East school district in Granite Falls. He has also been a principal in Barnesville.

In 2010, Staska was named the state's top superintendent by the Minnesota Association of School Administrators.

He interviewed Friday as a finalist for the Moorhead Area Public Schools superintendent position.